From: Asmus Freytag (firstname.lastname@example.org)
Date: Wed Feb 05 2003 - 14:35:26 EST
At 06:24 PM 2/5/03 +0000, email@example.com wrote:
>The advantages of using P14 tags (...equals lang IDs mark-up) is
>that runs of text could be tagged *in a standard fashion* and
>preserved in plain-text.
The minute you have scoped tagging, you are no longer using
The P14 tags are no different than HTML markup in that regard,
however, unlike HTML markup they can be filtered out by a
process that does not implement them. (In order to filter
out HTML, you need to know the HTML syntax rules. In order
to filter out P14 tags you only need to know their code point
Variation selectors also can be ignored based on their code
point values, but unlike p14 tags, they don't become invalid
when text is cut&paste from the middle of a string.
If 'unaware' applications treat them like unknown combining
marks and keep them with the base character like they would
any other combining mark during editing, then variation
selectors have a good chance surviving in plain text.
P14 tags do not.
Unicode 4.0 will be quite specific: P14 tags are "reserved for
use with particular protocols requiring their use" is what the
text will say more or less.
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